
Toshiba Semiconductor and Storage
TLP187(V4-TPL,E is a same-series candidate needing pinout and VCEO review.
TLP187(TPL,E replacements need careful optocoupler checks. The only kept candidate is a same-series V4 option requiring FAE review.
CTR matches, but VCEO and output type need proof.
SO6 text matches; pinout is missing.
No firmware interface.
Kept candidate is active.
No confirmed pin-compatible replacement is proven from the provided data.
Check TLP187(V4-TPL,E first, then verify Toshiba pinout, VCEO, output type, and temperature.
Pinout and 300V VCEO are not confirmed in the candidate fields.

Toshiba Semiconductor and Storage
TLP187(V4-TPL,E is a same-series candidate needing pinout and VCEO review.
| Feature / factor | TLP187(TPL,E | TLP187(V4-TPL,E | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SO6, 4 leads | same SOIC text | same SOIC text — package string matches | ||
| Pinout | 4 pins known | pin_count 0 | pin_count 0 — no pinout evidence | ||
| Voltage | 3750Vrms; 300V VCEO | 3750Vrms; VCEO missing | 3750Vrms; VCEO missing — isolation only matches | ||
| Current | CTR 1000% min | 1000%@1mA min | 1000%@1mA min — CTR aligns | ||
| Lifecycle | Active | Active | Active — both active |
From the provided data, TLP187(V4-TPL,E is the best same-series candidate, pending pinout and VCEO review.